Intervertebral disc prosthesis with liquid chamber
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United States of America Patent
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-
May 28, 2002
Grant Date -
N/A
app pub date -
Jun 7, 2001
filing date -
Dec 11, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An intervertebral disc prosthesis includes two opposing plates and a flexible seal extending between the two plates for forming a closed chamber therebetween. The disc prosthesis also includes a liquid provided in the chamber and a body disposed in the liquid and the chamber, the body having a plurality of pores at an outer surface thereof and cavities extending from the pores into the body. The liquid and the body are selected from materials so that said liquid does not normally wet to said cavities and compressive energy must be applied to the liquid for forcing the liquid into the cavities.
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Family
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